It's a very late localization. Persona 5 took 6 or 7 months, DQXI took 1 year and 2 months. FFXV WW release helped a lot, same with MHW.
It has had inconsistent releases like KH, but unlike KH there are no collections of the other games.
It released at the same time as other exclusives and as usual near the holidays where it is most likely to flop.
Persona 5 had style, FFXV had hype, DQXI had same old same old, so only fans would pick it up.
Most promotional content doesn't showcase the game and how fun it is, it is just the story and graphics.







